Supabase Edge Function Examples

What are Supabase Edge Functions?

Supabase Edge Functions are written in TypeScript, run via Deno, and deployed with the Supabase CLI. Please download the latest version of the Supabase CLI, or upgrade it if you have it already installed.

Example Functions

The function examples are located in ./supabase/functions:

browser-with-cors: Handle CORS headers for function invocations from browser environments.
select-from-table-with-auth-rls: Retrieve data from an authenticated user via RLS.

Develop locally

Run supabase start (make sure your Docker daemon is running.)
Run supabase functions serve your-function-name
Run the CURL command in the example function, or use the invoke method on the Supabase client.

Deploy

Generate access token and log in to CLI
- Navigate to https://app.supabase.io/account/tokens
- Click "Generate New Token"
- Copy newly created token
- Run supabase login
- Input your token when prompted
Link your project
- Within your project root run supabase link --project-ref your-project-ref
Set up your secrets
- Run supabase secrets set --from-stdin < .env to set the env vars from your .env file.
- You can run supabase secrets list to check that it worked and also to see what other env vars are set by default.
Deploy the function
- Within your project root run supabase functions deploy payment-sheet
In youre ./app/.env file remove the SUPA_FUNCTION_LOCALHOST variable and restart your Expo app.

👁⚡️👁

\o/ That's it, you can now invoke your Supabase Function via the supabase-js and supabase-dart client libraries. (More client libraries coming soon. Check the supabase-community org for details).

For more info on Supabase Functions, check out the docs and the examples.